I don't work for anyone in the tech industry (anymore!), but I have to report that I have finally found a native Mac solution that seems to work *perfectly* with how I use GTD. I've tried iCal/Address Book, Now-Up-To-Date, Entourage, Palm Desktop, LifeBalance, and maybe others which currently escape me.
Combined with my aging Palm m500, I've looked in vain for something that's logical, beautiful, and, most importantly, makes GTD straightforward and natural. All of the above apps didn't do it for me, for one reason or another. If they're working for you: kudos, and ignore my rant.
Today I downloaded the brand new version of DayLite from http://www.marketcircle.com and am delighted to see that it integrates perfectly with the Palm, and works like a true Mac application should. It's beautiful, simple, and more powerful than I'll need right now (which gives me room to grow). It doesn't get in the way. It's made for business users, and they seem to have hit the mark (with me, at least!).
As I said, I don't work for the company or anything of the sort, but I had an itch, and this appears to completely resolve my issues and concerns.
Has anyone else tried this app? Does it work as well as I'm seeing (having given it only a short (but fairly thorough) work-through)? Anyone have any horror stories to share about the program -- or vice versa? In short, is it worth the money?